Newer ones also support it. Here's a list (if the green column says "ja" it's supported): http://www.ptt-apparate.ch/IWV-Router/IWV-Router.html http://www.ptt-

Newer ones also support it. Here's a list (if the green column says "ja" it's supported): http://www.ptt-apparate.ch/IWV-Router/IWV-Router.html http://www.ptt-apparate.ch/IWV-Router/IWV-Router.html The footnote mentions that the rotary dial's timing must be correct.